WR: 20 ATM - Case: 55 mm - Gender: Men - Case Material: SS & Carbon - Strap Material: Resin - Movement: Solar - Functions: Multifunction - Glass: Mineral - Product Type: Wristwatch Product Description: The Casio G-Shock GR-B300EC-1AER is a robust men's timepiece designed for durability and functionality, making it ideal for both professional and casual wear. Key Features: Movement: Solar-powered quartz movement ensures precise timekeeping and eliminates the need for regular battery replacements.Dial Color: Black dial with luminous hands and markers for enhanced readability in low-light conditions.Case Material: Carbon Core Guard structure provides a lightweight yet durable case, offering superior shock resistance.Case Dimensions: Approximately 54.7mm in diameter and 18mm in thickness, delivering a substantial presence on the wrist.Band Material: Black resin band with a buckle clasp ensures a secure and comfortable fit.Glass: Mineral glass offers scratch resistance and clarity.Water Resistance: Rated up to 200 meters, suitable for professional marine activities and serious surface water sports.Connectivity: Bluetooth smartphone linking allows for automatic time adjustment and access to various functions via the CASIO WATCHES app.World Time: Displays time in 38 time zones (38 cities + coordinated universal time), with daylight saving on/off and auto summer time (DST) switching.Stopwatch: 1/1000-second stopwatch with a measuring capacity of up to 24 hours.Timer: Countdown timer with a range of up to 24 hours.Alarms: 5 daily alarms and hourly time signal.Light: Super Illuminator (high-brightness LED light) maintains watch readability in the dark.SpecificationValueWR20 ATMCase55 mmGenderMenCase MaterialSS & CarbonStrap MaterialResinMovementSolarFunctionsMultifunctionGlassMineralProduct TypeWristwatchPackagingOfficial Box